function validate() 
{
Name=volunteer.Name.value;
if (Name=='') {
alert('Please enter your Name.');
event.returnValue=false;}

Email=volunteer.Email.value;
if (Email=='') {
alert('Please enter your email.');
event.returnValue=false;}

Email=volunteer.Email.value;
if (Email.indexOf("@") < 0) {	
alert('Please enter a valid email address.');
event.returnValue=false;}

}